function openPictureWindow_GL(imageName,imageWidth,imageHeight,alt,posLeft,posTop) {
newWindow = window.open("","newWindow","width="+imageWidth+",height="+imageHeight+",left="+posLeft+",top="+posTop);
newWindow.document.open();
newWindow.document.write(''+alt+'');
newWindow.document.write('
');
newWindow.document.write('');
newWindow.document.close();
newWindow.focus();
}